1220020212111 has 8 divisors (see below), whose sum is σ = 1627019430960. Its totient is φ = 813183900672.

The previous prime is 1220020212107. The next prime is 1220020212113. The reversal of 1220020212111 is 1112120200221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220020212111 - 2² = 1220020212107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020212113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40709376 + ... + 40739333.

It is an arithmetic number, because the mean of its divisors is an integer number (203377428870).

Almost surely, 2^{1220020212111} is an apocalyptic number.

1220020212111 is a deficient number, since it is larger than the sum of its proper divisors (406999218849).

1220020212111 is an equidigital number, since it uses as much as digits as its factorization.

1220020212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81453705.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220020212111 its reverse (1112120200221), we get a palindrome (2332140412332).

The spelling of 1220020212111 in words is "one trillion, two hundred twenty billion, twenty million, two hundred twelve thousand, one hundred eleven".